Commit Graph

13 Commits

Author SHA1 Message Date
Benoit Jacob
39095c8faa only include SSE path if SSE enabled 2009-12-14 22:52:11 -05:00
Benoit Jacob
d02eccf584 add SSE path for Matrix4f inverse, taken from Intel except that we do a kosher
division instead of RCPPS-followed-by-Newton-Raphson. The rationale for that is
that elsewhere in Eigen we dont allow ourselves this approximation (which throws
2 bits of mantissa), so there's no reason we should allow it here.
2009-12-14 22:47:14 -05:00
Mark Borgerding
ff1e9542f6 added comments to help vim understand the header files are c++. 2009-12-01 18:00:29 -05:00
Benoit Jacob
da363d997f introduce ei_xxx_return_value and ei_xxx_impl for xxx in solve,kernel,impl
put them in a new internal 'misc' directory
2009-11-03 02:18:10 -05:00
Benoit Jacob
2840ac7e94 big huge changes, so i dont remember everything.
* renaming, e.g. LU ---> FullPivLU
* split tests framework: more robust, e.g. dont generate empty tests if a number is skipped
* make all remaining tests use that splitting, as needed.
* Fix 4x4 inversion (see stable branch)
* Transform::inverse() and geo_transform test : adapt to new inverse() API, it was also trying to instantiate inverse() for 3x4 matrices.
* CMakeLists: more robust regexp to parse the version number
* misc fixes in unit tests
2009-10-28 18:19:29 -04:00
Benoit Jacob
7c14e1eac4 add partial-pivoting LU decomposition
the name 'PartialLU' is not meant to be definitive!
make inverse() and determinant() use it, so it's *almost* considered
well tested.
2009-05-13 02:02:22 +00:00
Benoit Jacob
8106d35408 Patch by Kenneth Riddile: disable MSVC warnings, reenable them outside
of Eigen, and add a MSVC-friendly path in StaticAssert.
2008-12-18 20:48:02 +00:00
Benoit Jacob
f04c1cb774 Complete LU documentation 2008-08-11 21:26:37 +00:00
Benoit Jacob
c2f8ecf466 * LU decomposition, supporting all rectangular matrices, with full
pivoting for better numerical stability. For now the only application is
determinant.
* New determinant unit-test.
* Disable most of Swap.h for now as it makes LU fail (mysterious).
Anyway Swap needs a big overhaul as proposed on IRC.
* Remnants of old class Inverse removed.
* Some warnings fixed.
2008-08-04 04:45:59 +00:00
Gael Guennebaud
172000aaeb Add .perpendicular() function in Geometry module (adapted from Eigen1)
Documentation:
 * add an overview for each module.
 * add an example for .all() and Cwise::operator<
2008-07-22 10:54:42 +00:00
Benoit Jacob
3eccfd1a78 -fix certain #includes
-fix CMakeLists, public headers weren't getting installed
2008-05-12 21:15:17 +00:00
Benoit Jacob
2a86f052a5 - optimized determinant calculations for small matrices (size <= 4)
(only 30 muls for size 4)
- rework the matrix inversion: now using cofactor technique for size<=3,
  so the ugly unrolling is only used for size 4 anymore, and even there
  I'm looking to get rid of it.
2008-04-14 17:07:12 +00:00
Benoit Jacob
ea3ccb1e8c * Start of the LU module, with matrix inversion already there and
fully optimized.
* Even if LargeBit is set, only parallelize for large enough objects
  (controlled by EIGEN_PARALLELIZATION_TRESHOLD).
2008-04-14 08:20:24 +00:00